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On-farm verification of maize/Cowpea intercropping on the control of Striga under subsistence farming

By: Massawe, C.R | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) Kenya | 7. Proceedings of the Eastern and Southern Africa Regional Maize Conference Nairobi (Kenya) 5-11 Feb 2002.
Contributor(s): Friesen, D.K.|Palmer, A.F.E [eds.] | Hella, J.P [coaut.] | Kaswende, J.S [coaut.] | Mbwaga, A.M [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Nairobi (Kenya) KARI|CIMMYT : 2002Description: p. 165-167.ISBN: 970-648-120-6.Subject(s): Agricultural economics | Cowpeas | Intercropping | Maize | Sorghum | Striga asiatica | Tanzania | Yield factors | CIMMYT | KARI | Farming systems AGROVOCDDC classification: 338.16 Summary: Witchweed; (Striga asiatica (L.) Kuntze, has been identified by Tanzanian farmers as one of the major biotic constraints to Maize and Sorghum production in semi and subtropical regions of the country. The most affected population group is the resource-poor farmers who cannot afford to purchase agricultural inputs such as fertilizer. Average yield losses of 40-90% caused by Striga are common on farmers' fields in Striga-prone areas. On-farm trials were conducted for two seasons, 1997 and 1998 in Maramba division in Eastern Tanzania to verify on-station results on the control of Striga by intercropping of maize with cowpea. Ten farmers were selected to carry out the trial under the criterion that their fields were naturally infested by Striga. Plot size was 10m x 10m. Striga plants were recorded from the net plot of 6m x 5m at 9 and 12 weeks after planting and grain yield of maize was determined at harvest. Lowest Striga numbers were observed from treatments where maize was planted in the same hill with cowpea followed by in alternate hills. Contrary to the Striga numbers, highest maize yields were obtained from the sole maize treatment, but the results were not statistically significant. The relatively low number of Striga plants in the intercrop indicated a reduced potential for flowering, capsule production and consequently, a reduced capacity of increasing the Striga seed bank in the soil. From farmers' evaluation, they preferred intercrop in the same hill because it reduced Striga numbers and they were able to harvest two crops from the same field.Collection: CIMMYT Publications Collection
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Book CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 338.16 FRI (Browse shelf) 1 Available O630188
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Witchweed; (Striga asiatica (L.) Kuntze, has been identified by Tanzanian farmers as one of the major biotic constraints to Maize and Sorghum production in semi and subtropical regions of the country. The most affected population group is the resource-poor farmers who cannot afford to purchase agricultural inputs such as fertilizer. Average yield losses of 40-90% caused by Striga are common on farmers' fields in Striga-prone areas. On-farm trials were conducted for two seasons, 1997 and 1998 in Maramba division in Eastern Tanzania to verify on-station results on the control of Striga by intercropping of maize with cowpea. Ten farmers were selected to carry out the trial under the criterion that their fields were naturally infested by Striga. Plot size was 10m x 10m. Striga plants were recorded from the net plot of 6m x 5m at 9 and 12 weeks after planting and grain yield of maize was determined at harvest. Lowest Striga numbers were observed from treatments where maize was planted in the same hill with cowpea followed by in alternate hills. Contrary to the Striga numbers, highest maize yields were obtained from the sole maize treatment, but the results were not statistically significant. The relatively low number of Striga plants in the intercrop indicated a reduced potential for flowering, capsule production and consequently, a reduced capacity of increasing the Striga seed bank in the soil. From farmers' evaluation, they preferred intercrop in the same hill because it reduced Striga numbers and they were able to harvest two crops from the same field.

English

0410|AGRIS 0401|AL-Maize Program

Juan Carlos Mendieta

CIMMYT Publications Collection

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Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org